1. Internal Medicine, Department of Medicine and Science of Aging, ‘G. D'Annunzio’ University, Chieti, Italy
2. Ultrasound Unit, Internal Medicine, Department of Medicine and Science of Aging, ‘G. D'Annunzio’ University, Chieti, Italy
3. Infectious Diseases Unit, Department of Medicine and Science of Aging, "G. d'Annunzio" University, Chieti, Italy